Karin is oros experiment nothing on her is natural lol and if we go by natural Tobirama is better than herWith natural ability its Karin uncontested.
With someone/somthing else giving sensory ability then its naruto.
Her sensory abilities have no association with Oro experimenting on her, her ability stems from her mind.Karin is oros experiment nothing on her is natural lol and if we go by natural Tobirama is better than her
Ot: naruto